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<!DOCTYPE html> <html> <body> <?php $xml=<<<XML <book xmlns:chap="http://example.org/chapter-title"> <title>My Book</title> <chapter id="1"> <chap:title>Chapter 1</chap:title> <para>Donec velit. Nullam eget tellus...</para> </chapter> <chapter id="2"> <chap:title>Chapter 2</chap:title> <para>Lorem ipsum dolor sit amet....</para> </chapter> </book> XML; $sxe=new SimpleXMLElement($xml); $sxe->registerXPathNamespace('c', 'http://example.org/chapter-title'); $result=$sxe->xpath('//c:title'); foreach ($result as $title) { echo $title . "<br>"; } ?> </body> </html>